Teaching

• Teaching assistant. Calculus II. Bachelor in Electrical Power Engineering, Carlos III University of Madrid. January 2020--May 2020. 
• Teaching assistant. Calculus III. Bachelor's Degree in Industrial Technologies Engineering, Carlos III University of Madrid. September 2017--January 2018.
• Teaching assistant. Calculus II. Bachelor's Degree in Industrial Electronics and Automation Engineering, Carlos III University of Madrid. February 2017-June 2017.
• Teaching assistant. Calculus II. Bachelor's Degree in Telematics Engineering, Carlos III University of Madrid. February 2017--June 2017.
• Teaching assistant. Linear Algebra. Bachelor's Degree in Mechanical Engineering, Carlos III University of Madrid. September 2015--January 2016.
• Teaching assistant. Calculus IV: Complex Analysis. Bachelor's Degree in Electrical Engineering, José Antonio Echeverría Technological University of Havana (CUJAE), Havana, Cuba. January 2014--July 2014. 
• Teaching assistant. Calculus III: Series and Differential Equations. Bachelor's Degree in Electrical Engineering, José Antonio Echeverría Technological University of Havana (CUJAE), Havana, Cuba. September 2013--January 2014.      
• Teaching assistant. Calculus IV: Complex Analysis. Bachelor's Degree in Electrical Engineering, José Antonio Echeverr\'ia Technological University of Havana (CUJAE), Havana, Cuba. January 2013--July 2013. 
• Teaching assistant. Calculus III: Series and Differential Equations. Bachelor's Degree in Electrical Engineering, José Antonio Echeverría Technological University of Havana (CUJAE), Havana, Cuba. September 2012--January 2013.   

Participation in scientific events

• VII Ibero-American Workshop in Orthogonal Polynomials and Applications (EIBPOA 2018), Carlos III University of Madrid, Legan\'es.  Member of the local committee and presented the poster on the ``Discrete Laguerre-Sobolev Orthogonal Polynomials".  3-6 July 2018.
• IV meeting of the Network of Orthogonal Polynomials and Approximation Theory (Orthonet 2017). San Lorenzo de El Escorial, Madrid, Spain. Presented the poster on the ``Asymptotic behavior of Sobolev extremal polynomials with respect to mutually singular measures". 17--19 November 2017.
• XI Workshop of Young Researchers in Mathematics, School of Mathematics, Complutense University of Madrid, Madrid, Spain. Delivered a talk on the ``Sobolev extremal polynomials with respect to mutually singular measures". 11-13 September 2017. 
• 14th International Symposium on Orthogonal Polynomials, Special Functions, and Applications, organized by the School of Mathematics, Statistics, and Actuarial Science at Kent, Canterbury, UK. Delivered a talk on the ``Sobolev Extremal Polynomials". 3--7 July 2017.
• International Congress COMPUMAT. University of Informatics Sciences (UCI). Noviembre 27-29, 2013.
  Havana, Cuba.  

• A. Díaz-González, I. Pérez-Yzquierdo and H. Pijeira Cabrera. Rational Approximation and Sobolev-type Orthogonality, Journal of Approximation Theory (2020).  DOI: 10.1016/j.jat.2020.105481
• A. Díaz-González, F. Marcellán Español, H. Pijeira-Cabrera and W. Urbina, Discrete-Continuous Jacobi-Sobolev Spaces and Fourier Series, Bull. Malays. Math. Sci. Soc. (2020). DOI: 10.1007/S40840-020-00950-7 
• A. Díaz-González, G. López Lagomasino and H. Pijeira. Asymptotic zero distribution for a class of extremal polynomials, Bull. Math. Sci. (2019). DOI: 10.1142/S166436071950019X